<template>
  <div class="login-container" style=" display: flex;justify-content: center; align-items: center;">
    <vue-particles color="#dde3e9" />
    <el-card style="width: 500px; height: 500px; position: absolute;  border-radius: 15px; position:relative;z-index:3;">
      <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
        <div class="title-container">
          <h3 class="title">欢迎注册</h3>
        </div>

        <el-form-item prop="username">
          <span class="svg-container">
            <svg-icon icon-class="user" />
          </span>
          <el-input ref="username" v-model="loginForm.username" placeholder="请设置用户名！" name="username" type="text" tabindex="1" auto-complete="on" />
        </el-form-item>

        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="请输入密码！"
            name="password"
            tabindex="2"
            auto-complete="on"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>


        <el-form-item prop="checkPass">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType"
            ref="checkPass"
            v-model="loginForm.checkPass"
            :type="passwordType"
            placeholder="请再次输入密码！"
            name="password"
            tabindex="2"
            auto-complete="on"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>
        <el-row>
          <el-col :span="16">
            <el-form-item prop="captcha">
              <span class="svg-container">
                <svg-icon icon-class="form" />
              </span>
              <el-input ref="captcha" v-model="loginForm.captcha" placeholder="请输入验证码" name="captcha" type="text" tabindex="1" auto-complete="on" />
            </el-form-item>
          </el-col>
          <el-col :span="8">
            <a
              href="javascript:void(0)"
              @click="createCode()"
            ><img
              :src="verifitycode"
              style="width:90%; margin-left: 15px; margin-top: 4px"
              alt="图片加载失败"
            ></a>
          </el-col>
        </el-row>
        <el-button :loading="loading" type="primary" style="width: 100%; margin-bottom: 10px" @click.native.prevent="handleRegister">注册</el-button>
        <el-row>
          <el-col style="width: 30%;margin-left: 75%">
            <el-link type="primary" style="margin-bottom: 15px" @click="toLogin()">返回登录页面！</el-link>
          </el-col>
        </el-row>
      </el-form>
    </el-card>
  </div>
</template>

<script>
import { register } from '@/api/user'
export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value.length < 5) {
        callback(new Error('请输入5位以上的用户名！'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('请输入6位以上的密码！'))
      } else {
        callback()
      }
    }
    var checkPass = (rule, value, callback) => {
      console.log(value)
      if (value === '') {
        callback(new Error('请再次输入6位数以上的密码'))
      } else if (value !== this.loginForm.password) {
        callback(new Error('两次输入密码不一致!'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        captcha: '',
        username: '',
        password: '',
        checkPass: ''
      },
      verifitycode: '',
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        checkPass: [{ required: true, trigger: 'blur', validator: checkPass }],
        captcha: [{ required: true, min: 4, max: 4, message: '请输入4位验证码', trigger: 'blur' }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.createCode()
  },
  methods: {
    handleRegister() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          register(this.loginForm).then((res) => {
            if (res.code === 200) {
              this.$message({
                message: '注册成功！',
                type: 'success'
              })
              this.$router.push({ path: this.redirect || '/' })
            } else {
              this.$message({
                message: res.message,
                type: 'error'
              })
            }
          })
        } else {
          this.$message({
            message: '请输入正确的用户名或密码！',
            type: 'error'
          })
        }
      })
    },
    toLogin() {
      this.$router.push({ name: 'login' })
    },
    createCode() {
      this.verifitycode = '/service-system/admin/captch/' + Date.now()
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #e5e5e5;
$light_gray: #1c0909;
$cursor: #d23b3b;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {

  width: 100%;
  height: 100%;
  background-image: url("../../assets/pg4.png");
  background-size: 100% 100%;
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #694747;
#particles-js{
  width: 100%;
  z-index: 1;
  height: calc(100% - 100px);
  position: absolute;   //设置absolute,其他DIV设置为relative，这样这个例子效果就作为背景
}
.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 15px 15px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
